package com.lighter.auth.service;

import com.lighter.auth.feign.RemoteUserService;
import com.lighter.repository.constant.UserConstants;
import com.lighter.repository.domain.LoginUser;
import com.lighter.repository.domain.R;
import com.lighter.repository.enums.UserStatus;
import com.lighter.repository.exception.BaseException;
import com.lighter.repository.utils.SecurityUtils;
import com.lighter.repository.utils.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Map;

/**
 * 登录校验方法
 * 
 * @author jiangf
 */
@Component
public class SysLoginService
{
    @Autowired
    private RemoteUserService remoteUserService;

    /**
     * 登录
     */
    public LoginUser login(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            throw new BaseException("用户/密码必须填写");
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            throw new BaseException("用户密码不在指定范围");
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            throw new BaseException("用户名不在指定范围");
        }
        // 查询用户信息
        R<LoginUser> userResult = remoteUserService.getUserInfo(username);

        if (R.FAIL == userResult.getCode())
        {
            throw new BaseException(userResult.getMsg());
        }

        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData()))
        {
            throw new BaseException("登录用户：" + username + " 不存在");
        }
        LoginUser userInfo = userResult.getData();
        Map user = (Map) userResult.getData().getSysUser();
        userInfo.setUserid(Long.valueOf((int) user.get("userId")));
        userInfo.setUsername((String) user.get("userName"));
        if (UserStatus.DELETED.getCode().equals(user.get("delFlag")))
        {
            throw new BaseException("对不起，您的账号：" + username + " 已被删除");
        }
        if (UserStatus.DISABLE.getCode().equals(user.get("status")))
        {
            throw new BaseException("对不起，您的账号：" + username + " 已停用");
        }
        if (!SecurityUtils.matchesPassword(password, (String) user.get("password")))
        {
            throw new BaseException("用户不存在/密码错误");
        }
        return userInfo;
    }

}